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CHAPTER 7: SYSTEM DESIGN AND INTEGRATION TOOLS
34
Using MAPP Online Cinema
MAPP Online Cinema is compatible with the following oper-
ating systems:
■ Windows
■ Linux
®
■ Unix
®
■ Mac OS
®
10.4 and later
Downloading and Installing MAPP Online Cinema
To use MAPP Online Cinema, you can register at the follow-
ing link:
http
://meyersound.com/products/mapponline/cinema/
register/
After entering your registration information, an email will be
sent to you with your user name, password, and the MAPP
Online Cinema download location. On-screen instructions
will guide you through the download and installation pro-
cess.
The MAPP Online Cinema client software is regularly
upgraded to add support for the latest Meyer Sound loud-
speakers, as well as to add feature enhancements. Most
upgrades are downloaded automatically when logging on to
a MAPP Online Cinema session. The MAPP Online Cinema
database includes all Meyer Sound EXP screen channel
loudspeakers, surround loudspeakers, subwoofers, and
processors.
SIM 3 MEASUREMENT SYSTEM
The SIM 3 audio analyzer is a high-resolution audio mea-
surement system comprised of software, hardware, micro-
phones, and accessory cables. The SIM 3 is optimized for
measuring audio frequencies with resolutions up 1/48th of
an octave, allowing you to apply precise corrections to bal-
ance system response using frequency and phase domain
information.
Source Independent Measurement Technique
The SIM 3 audio analyzer implements Meyer Sound’s source
independent measurement technique, a dual-channel
method that accommodates statistically unpredictable exci-
tation signals. Any excitation signal within a desired fre-
quency range can be used to obtain highly accurate
measurements for acoustical or electronic systems. For
example, concert halls and loudspeaker systems can be
captured during a performance and used as a SIM 3 test
signal, so you can:
■ View measurement data as amplitude versus time
(impulse response) or amplitude and phase versus fre-
quency (frequency response)
■ Utilize a single-channel spectrum mode
■ View frequency domain data within a logarithmic fre-
quency axis
■ Determine and internally compensate for propagation
delays using the SIM 3 Delay Finder
SIM 3 Applications
The SIM 3’s primary applications are testing and aligning
loudspeaker systems, which entails:
■ Measuring propagation delays between subsystems to
determine appropriate polarities and delay times
■ Measuring variations in frequency response caused by
the acoustical environment and the placement and inter-
action of loudspeakers to determine corrective equaliza-
tion
■ Optimizing subwoofer integrations
■ Optimizing loudspeaker arrays
The SIM 3 is also versatile and accurate enough for the fol-
lowing applications:
■ Microphone calibration and equalization
■ Transducer evaluation and correction
■ Echo detection and analysis
■ Vibration analysis
■ Architectural acoustics
■ Underwater acoustics